如东县海堤林业资源生态经济效益初步评估

Preliminary evaluation of ecological economic effect of forest resource on the coastal bank in Rudong County Jiangsu

通过如东县海堤林业资源调查和树种、林分的蓄积与生长分析,提出了对一、二线海堤防护林采伐更新混交建议。对海堤防护林资源生态经济效益作了初步评估:(1)海堤防护林资源直接经济效益59400万元;(2)间接经济效益(按10a算)7544万元;(3)海堤防护用材林各树种纯收入高低排序为柳杉>杨树>水杉>楝树>刺槐>泡桐>杂阔,海堤防护经济林各树种纯收入高低排序为桃、梨>湖桑>无花果>竹子。为经营、保护海堤防护林林业资源及规划建设高标准、多功能的综合沿海防护林体系生态工程提供理论依据。

On the base of understanding the forest resource on the coastal bank in Rudong,it was analysised the factors of forest species,forest stand the rate of wood cumulation for forest ages and the stand growth characteristic et al.It is suggested that is regeneration cutted and mixed for shelt belt forest on coastal bank,and evaluated and calculated that the ecological economic effect of forest resource on coastal bank.(1)The direct economic effect is 59 40 million Yuan.(2)The indirect economic effect is 75 44 million Yuan.(3)The orderes of net income of the different species is Cryptomeria fortunei>Populus simonii etc.> Metasequoia glyptostroboides>Robinia pseudoacacia>Melia azedarach>Paulownia fortunei>Ligustrum lucidum etc,it of the economic forest is Prunus perisica and Pyrus pyrifolia>Morus abla>Ficus carica>Phyllostachy glaucea etc. Author’s address:Jiangsu Academy of Forestry,Jiangsu Nanjing 211153,China